a = [
    {"编号": 1, "名称": "电风扇", "品牌": "美的", "单价": 500},
    {"编号": 2, "名称": "洗衣机", "品牌": "TCL", "单价": 1000},
    {"编号": 3, "名称": "微波炉", "品牌": "老板", "单价": 400}
]

for a1 in a:
    a2 = str(a1["编号"]).zfill(6)
    a3 = f"¥{a1['单价']:0.2f}"
    print(f"{a2}\t{a1['名称']}\t{a1['品牌']}\t{a3}")